.login-box {
    background-image: url('login-box-bg.png');
    background-repeat: no-repeat;
    width: 960px;
    height: 627px;
    margin: 0 auto;
    position: absolute;
    top: 50%;
    margin-top: -313.5px;
    left: 50%;
    margin-left: -490px;
    padding-top: 100px;
}

.login-box>h1,
h2 {
    text-align: center;
}

#login {
    height: 100%;
    background-image: url('login-bg.png');
    background-repeat: no-repeat;
}

.input-group {
    height: 50px;
    width: 400px;
    margin: 0 auto;
    padding-top: 25px;
}

.input-group input {
    height: 50px;
    width: 100%;
    background-color: #eeeeee05;
    outline: none;
    border: none;
    border: 2px solid #999999;
    border-radius: 10px;
    padding-left: 45px;
    padding-right: 15px;
    font-size: 18px;
    font-weight: 500;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
}

.yzm-input {
    width: 50% !important;
    float: left;
}

.yzm-img {
    height: 46px;
    width: 40%;
    float: right;
    text-align: center;
    line-height: 50px;
}

.yzm-img img {
    width: 100%;
    height: 100%;
    margin-top: 5px;
    vertical-align: unset;
    
    border-radius: 10px;
    border: 2px solid #999999;
}

.icon-yzm {
    background-image: url('icon-yzm.png');
    background-repeat: no-repeat;
    background-position: 9px 9px;
}

.icon-user {
    background-image: url('icon-user.png');
    background-repeat: no-repeat;
    background-position: 9px 9px;
}

.icon-pwd {
    background-image: url('icon-pwd.png');
    background-repeat: no-repeat;
    background-position: 9px 9px;
}

.btn-group {
    height: 50px;
    width: 400px;
    margin: 0 auto;
    padding-top: 40px;
}

.btn-group>.btn {
    background-color: #014b83;
    height: 55px;
    width: 100%;
    border: 1px solid #014b83;
    outline: none;
    text-align: center;
    color: white;
    font-size: 22px;
    border-radius: 10px;
    cursor: pointer;
}

.copyright {
    text-align: center;
    color: #6d6d6d;
    padding-top: 20px;
}

@media screen and (max-width: 768px) {
    .login-box {
        width: 80%;
        height: 627px;
        position: unset;
        padding-top: 100px;
        margin-top: unset;
        margin-left: unset;
        background-image: unset;
        top: unset;
        left: unset;
        margin: unset;
        padding-top: 5%;
        margin: 0 auto;
    }
    .input-group input {
        font-size: 14px;
    }
    .input-group,
    .btn-group {
        width: 100%;
    }
    #login {
        padding: 15px;
        background-image: unset;
    }
}

@media screen and (max-width: 400px) {
    .login-box {
        width: 100%;
    }
}